Display screen or portion thereof with a graphical user interface



The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

The FIGURE is a front view of a display screen or portion thereof with a graphical user interface, showing the new design.

The outer perimeter broken lines showing the display screen or portion thereof illustrates portions of the article of manufacture and form no part of the claimed design. The heavy black broken lines enclosing the discontinuous blue strip, three circles, four stars, and four map pins depict bounds of the claimed design and form no part thereof. All other broken lines show portions of the graphical user interface and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a graphical user interface, as shown and described. 